# Gaia 1 and 2. A pair of new Galactic star clusters

@article{Koposov2017Gaia1A,
title={Gaia 1 and 2. A pair of new Galactic star clusters},
author={Sergey E. Koposov and Vasily A Belokurov and Graeme Cambridge and Carnegie Mellon University},
journal={Monthly Notices of the Royal Astronomical Society},
year={2017},
volume={470},
pages={2702-2709}
}
• Published 3 February 2017
• Physics
• Monthly Notices of the Royal Astronomical Society
We present the results of the very first search for faint Milky Way satellites in the Gaia data. Using stellar positions only, we are able to re-discover objects detected in much deeper data as recently as the last couple of years. While we do not identify new prominent ultra-faint dwarf galaxies, we report the discovery of two new star clusters, Gaia 1 and Gaia 2. Gaia 1 is particularly curious, as it is a massive (2.2$\times$10$^4$ M$_\odot$), large ($\sim$9 pc) and nearby (4.6 kpc) cluster…

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